New Covenant

The New Covenant (Hebrew ברית חדשה‎  berit hadashah ; Greek διαθήκη καινή diatheke kaine) is a biblical interpretation originally derived from a phrase in the Book of Jeremiah, in the Hebrew Bible. It is often thought of as an eschatological Messianic Age or world to come and is related to the biblical concept of the Kingdom of God.

Generally, Christians believe that the promised New Covenant was instituted at the Last Supper as part of the Eucharist, which in the Gospel of John includes the New Commandment. Based on the Bible teaching that, "For where a testament is, there must also of necessity be the death of the testator. For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth," Protestants tend to believe that the New Covenant only came into force with the death of Christ. The commentary to the Roman Catholic New American Bible also affirms that Christ is the "testator whose death puts his will into effect." Christians thus believe that Jesus is the mediator of the New Covenant, and that the Blood of Christ shed at his crucifixion is the required blood of the covenant.

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